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Physics (AS & A Level) · Feb / March 2017 · Paper 12 · Question 33

9702Potential difference and power

The potential difference across a resistor is 12 V. The current in the resistor is 2.0 A. A charge of 4.0 C passes through the resistor. What is the energy transferred in the resistor and the time taken for the charge to pass through the resistor?

  1. Aenergy / J: 3.0, time / s: 2.0
  2. Benergy / J: 3.0, time / s: 8.0
  3. Cenergy / J: 48, time / s: 2.0
  4. Denergy / J: 48, time / s: 8.0

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Correct answer: C. energy / J: 48, time / s: 2.0

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